18993238

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{6211}}^1$

素因数の和:6363

約数の個数: 16

約数和(自身を含む): 31308480

約数和(自身を除く): 12315242

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 6211, 12422, 68321, 136642, 863329, 1726658, 9496619, 18993238]

約数ペア:

[(1, 18993238), (2, 9496619), (11, 1726658), (22, 863329), (139, 136642), (278, 68321), (1529, 12422), (3058, 6211)]